Generally consists of the following: Base Bid WORK generally consists of major improvements to the float pond outlet pipe and valve control structure including the following: removal and replacement of existing asphalt paving; removal and disposal of existing CMP culvert; removal, salvage and re-installation of existing debris gate and modular concrete blocks; removal and replacement of chain link fencing; temporary fencing and flagging controls; construction surveying; excavation, dewatering, backfill and stabilization; temporary lowering of the float pond water level; new debris gate; slip lining and grouting an existing culvert; HDPE pipe; cast in place concrete valve vault; shut-off valve with electrical actuator and controls; topsoil and hydro seeding; erosion and sediment controls; and other miscellaneous related improvements.